I agree with that as well. Black Flag and AC 2 are great as well, but the RPG mechanics they added in Odyssey really kicked it up a notch above Black Flag and AC2 imo. And it sounds like they're making Ragnarok an even deeper RPG than Odyssey. Hopefully they take advantage of PS5 and Series X huge CPU and storage improvements to really improve the loading times (they were awful in Odyssey), as well as to increase the character counts in the cities to make them feel alive (Odyssey cities felt kind of dead) and to improve the physics effects, with trees blowing realistically in the wind and such.
I only really play RPG, so it shouldn't surprise anyone if I say the classics are rubbish. It was one game where you really needed a six core processor, or a X or pro console. It ran relatively well on the X, next gen should do better for anyone who wants play it.